Frame corner and fastener.



W. GOODROW. FRAME GOBNER. AND PAHTBNBB.

APPLICATION FILED MAY 7, 1907.

Pa51-:;1nted Jan. 5, 1909.

to be entered into receivingl warren eoopni'gw; or chicfeoyi tmois.

a cease To all whom it may concern:

Beit known that 1, WILLIAM Goonnow, a citizen of the United States,residing at Chica o, in the county of Cook and State of Ilhnois, haveinvented certain new and useful Improvements in Frame Corners and j 2,with a corner Fasteners, of which the following is a specification.

The

resent invention is primarily de-' signed or interlocking the'abuttingcorners o, icture frames, but can be used or interloc 'ng other framesfect joint is desired or required.

The objects'of the invention are to hold the. abutting corners of theframe against front and rear slip ing, and to draw the abutting edges oftl ie corners in close contact, so as to form a perfect and completeSpecification of Lette'rs'lPatent. v Application filed May 7, 1907.Serial No. 372,322.

ends of thestaple legs; Fig 7 is an elevation of the frame corner withthe staple removed.

be ofany suitable formation and size, having side pieces 1 and endpieces 3, for each side and end piece, formed on an angle, as shown inFigs. 1 and 4. The side piece 1, as shown, has a tongue 4 across thecorner 3, and the end iece 2 has a groove 5 across the corner 3,

The frame can which tongue and groove are in coinciding where a closeand per- 'oint; to construct a draw staple adapted holes of the framepieces on each side of e corner joint, for the le s of the sta le to actand draw together t e abutting aces of the pieces at theecorner; toform, in'the end face of one piece at the corner, a tongue, and in theop posing face of the other piece at the corner, a. oove to receive thetongue and hold the pieces in'elinement and against slipping forward orbackward out of place; to con- .for the corner of a struct a. lockingstaple,

material, with the frame, of spring metal or legs of .the staple slightlinclined inward, and with the ends of each staple formed 'so as not tointerfere with the forcing or driving of the staple to lockingposition;. and to improve generally the interlocking tongue or oove, andthe locking staple, for making a t' ht joint at the corners of theframe.

e invention consists in the features of construction and combinations ofparts hereinafter described and claimed.

In the drawings Figure -1 is a rearface elevationof the corner of aframe, showing the locking staple therefor; Fig. 2 a. cross section online a, of Fi 1, looking in the direction of the arrow; ig. 3 aerspective view of the abutting en faces 0 the corner of a frame,showing the interlocking tongue and groove; Fig. 4a front face view ofthe corner of a frame, showing the locking staple applied thereto withan ornamenta head' for the staple; of the locking staple of theinvention, with an ornamental head thereon; and Fig. 6 a side elevation'of a modified form for the as to the enteringv lanes, so that, when theton ue is entered into thev groove, the front ant rear faces of the sideand end pieces will be flush, and the interlock of the ton ue and,groove will hold the corner against displacement forward or backward,giving a the pieces at the corner. 7

T e abutting faces of the corners 3 of the frame pieces are brought inclose contact by the staple of the present invention, which fixedconnection between staple is formed with an end bar6 and legs 7; an

the staple is made from spring wire or other suitable material, so as togive the stale a draw action,for which purpose the legs 7 of the stapleare inclined inwardly, as clearly shown in Figs. 2, 5 and 6. The enterinend 8 of each staple, asshown in Fi s. 2 an 5, is rounded or curved soas to faci itate the entering of the. legs into holes 9 extending intothe body ofthe frame pieces on each side of the joint line, as shown inFigs 1 and 2; and each hole 9, 1n order t'o give an inl of the staple,

Fig. 5 a side elevationdraw action to the legs of the staple, is of aslightl greater diameter in cross section than t e diameter of the legsof the staple, with the distance between the holes the same as thedistance between the ends of the legs for the wall of each hole,adjacent to the edge of the corner, to furnish a bearing face engaged bythe end of the entered staple leg, so that as the staple is forced home,the incline of the legs bearing against the inner faceof the hole willserve to draw together the abutting faces of the pieces at the corner 3,as shown in Figs. 1 and 2. Each leg of the staple, instead of having acurved rounded entering end 8, can have an end 10, as shown in Fig. 6,which end has an inner curved face to facilitate the entering of thelegs of the staple into the holes 9, to effect a draw action by whichthe corner joint will be made close, as with the staple,'having the end8 for each leg, of Figs. 2 and 5.

The arrangement of Fig. 1 shows the look ing staple for the joint at thecorner applied to the rear face of the frame, but said sta is could beapplied to the front face of t frame by havin a fancy or ornamental heador plate 11 fixe 'to'the end or cross bar of the.

staple, as shown in Figs. 4 and 5; and when applied to the front face ofthe frame at the corner, the staple, through the spring le s 7,

will act and draw together the abutting aces of the frame pieces at thecorner, as described for the action of the sta is in the construction ofFig. 1, so that, w iether a t at by means of the mterlockin tongue andgroove, and the locking staple o the present invention, a close joint 18formed at each cornor of the frame, and'the corner is held againstslippin either edgewise or fiatwise,

making a comp etc and perfect corner for the ame.

While it is preferred to have the enterin ends of the legs of thelocking staple forme rounded, or with a curved inner ace, it will beunderstood that the rounding or curving of the entering end of eachstaple can be dispensed with, so long as the staplelegs have a slightinclination toward each other, and are ca able of being entered into thereceiving ho es 9, formed therefor in the body of the frame pieces. Thecross bar of the staple can be entered into across groove between theholes, so that the cross bar, with the cross groove, will prevent cornersliding of the abutting faces.

The corner of the present invention, with the interlocking groove andtongue and the locking staple, enables -a manufacturer of frames to sendthe frames to dealers cus tomers a'nd users in a knockdown condition,

as no skill is required in securing the corners,

soapso itonly being necessary to bring together the abutting faces andenter the locking staples into the receiving holes.

, What I claim as new and desire to secure by Letters Patent is:

1. A frame corner having on one abutting face a tongue, and in theopposite abutting face a groove adapted to receive the tongue, for thetongue and groove to maintain the corner in p ace against fiatwise sliping, in combination with a lockin staple ormed of a cross bar and apair of egs and made of spring material, each leg having an inwardinclination and entered into a receiving hole in the frame corner,substantially as described.

2. A frame corner having on one abutting face a tongue and in theopposite abutting face a'groove adapted to receive the tongue, for theton e and groove to maintain the corner in p ace against fiatwise sliping, in combination with a lockin staple ormed of a cross bar and apair ofiegs and made of spring material, each is ha an inwardinclination and a curve entering end and entered into a receiving-holein the frame corner, substantially as described.

3. A frame corner having on one abutting face a tongue and in theopposite abutting face a groove adapted to receive the tongue, for thetongue and groove .to maintain the corner in p ace'against flatwise sliping, in combination with a lockin staple ormed of a cross bar and apair ofdegs and madev of spring material, each 1e having an inwardinclination and entered intoa receiving hole in the frame corner, withthe entered holes larger in cross diameter than the cross diame-

